Chemistry - Swansea University’s Post

Luying Yi, Xiaogang Liu and colleagues introduce an imaging technique named “stochastic photoluminescence and compressed encoding,” or SPACE. SPACE leverages randomly arrayed lanthanide transducers as photonic encoders to capture various excitation wavelengths in a single image, recorded by a charge-coupled device. This approach enables the reconstruction of multiple scenes from this encoded image across four wavelength channels: X-rays (0.089 nm), ultraviolet (375 nm), and two near-infrared bands (808 and 1,532 nm), with the ability to expand to more channels through multi-layer encoders. SPACE enables multi-channel imaging for depth visualization and multi-spectral X-ray analysis, offering broad multi-spectral sensitivity and on-chip compatibility. This makes it a versatile tool for applications in materials characterization, bioimaging, remote sensing, and astronomy. Online now in #Matter https://lnkd.in/eiZwsSRb

What will the SLS 2.0 upgrade mean for experiments? Tighter beams, brighter light and extended photon energies open new experimental possibilities. Hans Braun and Phil Willmott delve into the details in Synchrotron Radiation News: read the latest Scientific Highlight for a short summary 👇 👇👇 #LightsourceScience #Synchrotron #WorldChangingScience #SLS #ExcitedAboutSLS #UpgradingSLS #SLS2.0 Lightsources.org

"We develop a non-invasive virtual diagnostic of an electron beam’s longitudinal phase space at megapixel resolution (1024 × 1024) based on a generative conditional diffusion model. We demonstrate the model’s generative ability on experimental data from the European X-ray FEL." This allows the improvement of performance for light sources such as free electron lasers (FEL) where highly relativistic electron beams are accelerated to generate incredibly short (10s of femtoseconds) coherent flashes of light for dynamic imaging. https://lnkd.in/d9_rbZc4

Artistic Colorization of SEM Images via Gaussian Splatting A novel view synthesis of scanning electron microscopy images and Conditional colorization. https://lnkd.in/dJRjFkwU

The Anatomy of a Raman Microscope! www.edinst.com Inside Dispersive Raman Microscope, we will have 1. Laser source from UV-VIS, to NIR 2. Band Pass Filters 3. ND filters 4. Raman Filters (Edge, Notch, and ULF) 5. Confocal Pinhole 6. Monochromator (Gratings) 7. Detectors (CCD, EMCCD, InGaAs) 8. Reflection mirrors to guide laser light to sample and raman signal to detector 9. Microscope set (stage, light illumination, objective lenses, camera for visualization) 10. Optional accessories : temperature control, electrochemical, tensile strength, raman polarization, etc fatih@nexus-analytics.co.id 081295500228 #raman #ramanspectroscopy #ramaneffect #materialsscience #materials #materialsengineering #ftir

Peculiar "Cartesian light" observed! COPS scientists have experimentally investigated peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap. [See: https://lnkd.in/eqE7fybr] To this end, we fabricated 3D diamond-like photonic crystals from silicon with a broad 3D band gap in the near-infrared and doped them with a periodic array of point defects. In position-resolved reflectivity and scattering microscopy, we observe narrow spectral features that match well with superlattice bands in band structures computed with the plane-wave expansion. The cavities are coupled in all three dimensions when they are closely spaced, and uncoupled when they are far apart. The superlattice bands correspond to light that hops in high-symmetry directions in 3D (“Cartesian light”) that opens applications in 3D photonic networks, 3D Anderson localization of light, and future 3D quantum photonic networks.

When considering the entire NV microscope, the net effect of this experiment is the realization of a heterodyne receiver within a quantum system. A testament to the incredible versatility of this solid state quantum platform.

Do you like your symmetry-broken domains thick or thin? Perovskite is a popular structure type for materials. It is also highly flexible, so each composition introduces its own preferences & peculiarities. Our new study on tilting domains in metal halide perovskites used in solar cells has been a multi-technique adventure combining diffuse scattering, inelastic scattering, optical microscopy, and of course machine learning force fields. Credit goes to Miloš Dubajić in the group of Sam Stranks for pulling this team together! #OpenAccess preprint on arXiv: https://lnkd.in/emBpHnC6

🔬 Unveiling the power of electron microscopy in quantum technologies! From advanced cryo-EM applications to electron holography, discover how these techniques are shaping the future of quantum materials and devices. 🔗https://lnkd.in/dgckZDex #QuantumTech #ElectronMicroscopy

A Strontium Quantum-Gas Microscope - "The development of quantum-gas microscopes has brought novel ways of probing quantum degenerate many-body systems at the single-atom level. Until now, most of these setups have focused on alkali atoms. Expanding quantum-gas microscopy to alkaline-earth elements will provide new tools, such as SU(N)- symmetric fermionic isotopes or ultranarrow optical transitions, to the field of quantum simulation. Here we demonstrate the site-resolved imaging of a 84Sr bosonic quantum gas in a Hubbard-regime optical lattice. The quantum gas is confined by a two-dimensional in-plane lattice and a light-sheet potential, which operate at the strontium clock-magic wavelength of 813.4 nm. We realize fluorescence imaging using the broad 461-nm transition, which provides high spatial resolution. Simultaneously, we perform attractive Sisyphus cooling with the narrow 689-nm intercombination line. We reconstruct the atomic occupation from the fluorescence images, obtaining imaging fidelities above 94%. Finally, we realize a 84Sr superfluid in the Bose-Hubbard regime. We observe its interference pattern upon expansion, a probe of phase coherence, with single-atom resolution. Our strontium quantum-gas microscope provides a new platform to study dissipative Hubbard models, quantum optics in atomic arrays, and SU(N) fermions at the microscopic level." DOI: 10.1103/PRXQuantum.5.020316 https://lnkd.in/eGrSdYnA